Dog collar



FIG. 1 is a front perspective view of my design for a dog collar showing the characteristic feature of the design, which resides in its shape in the form of a flower.

FIG. 2 is a front view thereof.

FIG. 3 is a rear view thereof.

FIG. 4 is a right side view thereof

FIG. 5 is a top view thereof.

FIG. 6 is a left side view thereof; and,

FIG. 7 is a bottom view thereof. 

I claim the ornamental design for a dog collar, as shown and described. 